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Networks / Telecoms
Figure 2
experience and the source of any the performance boost expected? of critical application services by:
latency issues. If the cause of latency is isolated to xrhombus Proving the performance of
the network, traffic analysis enables applications running over the
Traffic Analysis: network engineers to understand the network
To visualise and analyse the composition of traffic on specific links xrhombus Delivering consistent application
composition of network traffic on where latency is higher than normal or performance and measure it
specific links. This yields the expected. This yields the information xrhombus Mitigating the risks from planned
information needed to redirect or needed to redirect or reprioritise changes and unexpected events
reprioritise application traffic, or add application traffic, or add capacity. xrhombus Making more informed
capacity. If the source of latency is isolated to infrastructure investments
an infrastructure component—a busy xrhombus Working collaboratively and more
Device Performance Management: router or a server memory leak, for effectively
To poll network infrastructure instance—network managers need xrhombus Troubleshooting problems faster to
components and isolate the source of device performance management reduce MTTR
problems such as a busy router or a capabilities to poll the device in
server memory leak. question and pinpoint the reason so Summary
that corrective action can be taken. IT organisations can no longer
A Performance First management manage networks in isolation from the
approach starts by understanding and If latency cannot be attributed to the applications they support.
baselining end-to-end performance: network or the server infrastructure
What is normal performance for an and can be shown to be isolated in Traditionally IT staff built their network
application or a group of users? the application itself, the network management practices around
How does “normal” change during team is armed with the proof that will infrastructure availability and fault
busy and off-peak business cycles? eliminate the typical finger-pointing management.
Which applications and users are between IT infrastructure and
experiencing poor performance? application teams and expedite Today most networks are available
Where is the increased latency troubleshooting. more than 99 percent of the time
occurring? Is it in the network, server and increasing user expectations for
or application itself? What impact did Benefits of the Performance fast, trouble-free networked
the new application have on other First Paradigm applications requires a shift from a
application response times? The Performance First approach helps device-centric to a performance-
Did the infrastructure upgrade deliver IT organisations optimise the delivery centric focus.
Winter 2008
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